Granted Patent
Utility
US 4,518,779 · App. 06/423,958
1,2,3,4-Tetrahydro-1-aminomethyl-4-phenyl isoquinolines
Inventor:
Ronald C. Griffith
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Sep 27, 1982
Inventor
Ronald C. Griffith
Assignee (at issue)
Pennwalt Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.